<?php
class HTMLParse
{
  // the missing InnerHTML function!
  function innerHTML($node){
    $doc = new DOMDocument();
    foreach ($node->childNodes as $child)
    {
      $doc->appendChild($doc->importNode($child, true));
    }
    $result = $doc->saveHTML();
    return $result;
  }
  // Get the inner html of all elements inside tag from the source (input).
  function GetInnerArray($tag, $input)
  {
    $doc = new DOMDocument();
    @$doc->loadHTML($input);
    $dataset = $doc->getElementsByTagName($tag);
    $stringarr = array();
    foreach( $dataset as $row )
    {
      array_push($stringarr, trim($this->innerHTML($row)));
    }
    return $stringarr;
  }
  // Get the inner html of all elements inside tag where an attribute exists with the value.
  function GetInnerArrayFilter($input, $tag, $attribute, $value)
  {
    $doc = new DOMDocument();
    @$doc->loadHTML($input);
    $dataset = $doc->getElementsByTagName($tag);
    $stringarr = array();
    foreach( $dataset as $row )
    {
      if($row->getAttribute($attribute) == $value)
      {
        array_push($stringarr, trim($this->innerHTML($row)));
      }
    }
    return $stringarr;
  }
  // Get attribute of tags.
  function GetTagAttribute($input, $tag, $attribute)
  {
    $doc = new DOMDocument();
    @$doc->loadHTML($input);
    $dataset = $doc->getElementsByTagName($tag);
    $stringarr = array();
    foreach( $dataset as $row )
    {
        array_push($stringarr, $row->getAttribute($attribute));
    }
    return $stringarr;
  }
  // Get attribute of tags where the tag attrib has the value.
  function GetTagAttributeFilter($input, $tag, $attribute, $qattrib, $value)
  {
    $doc = new DOMDocument();
    @$doc->loadHTML($input);
    $dataset = $doc->getElementsByTagName($tag);
    $stringarr = array();
    foreach( $dataset as $row )
    {
      if($row->getAttribute($qattrib) == $value)
      {
        array_push($stringarr, $row->getAttribute($attribute));
      }
    }
    return $stringarr;
  }
}
?>